Toxidromes Flashcards
Garlic odor
- Dimethyl sulfoxide (DMSO) Arsenic
2. Organophosphates
Bitter almonds
Cyanide
Rotten eggs
Hydrogen sulfide
Sewer Gas
Acetone
Isopropyl Alcohol
Ethanol
Shoe polish
Nitrobenzene
Peanuts
Vacor (rat poison)
Fruity
DKA
Isopropanol
Mothballs
Naphthalene
If kids eat 2 of these=Hospital
Wintergreen
Methylsalicylate
List the causes for a decreased anion gap
- Lithium
- Bromide
- Hypoalbuminemia
- Multiple Myeloma
Define Kussmaul breathing
Acidemia causes Hyperventilation=
Respiratory compensation for metabolic acidosis
What is the normal osmolar gap?
< or equal to 10
When is gastric lavage effective?
If it’s within 60 minutes of ingestion
Syrup of ipecac effects
- Plant derivative which works centrally and peripherally to induce vomiting
- Use in remote locations
When is IV lipid emulsion indicated?
OD of lipophilic agents (CCB, Beta-Blockers) with cardiac arrest OR
Significant hemodynamic instability failing conventional therapy
Complication of IV lipid emulsion
Post-infusion pancreatitis
What are the key sx’s in anticholinergic toxidrome?
- Dry armpits
- Agitated
- Hyperthermia
Anticholinergic toxidrome causes
- Jimson weed
- Antihistamines- Benadryl (Diphenhydramine)
- Antidepressants, TCAs
- Carbamazepine
Anticholinergic toxidrome treatment
- ABC’s
- Supportive care
- Rapid cooling- water and fans
- Benzodiazepines- Help with agitation
- Paralytic Agents- Consider
When should you consider Physostigmine in Anticholinergic toxidrome? Major ADE’s?
If have both central and peripheral effects
CI: Heart block, COPD, Bradycardia
ADE: ASYSTOLE
Cholinergic Toxidrome sx’s in muscarinic
SLUDGE
Cholinergic Toxidrome sx’s in Nicotinic
Monday – Miosis Tuesday – Tachycardia Wednesday – Weakness Thursday – Tremors Friday – Fasciculations Saturday – Seizures Sunday – Somnolent
Sympathaomimetics Toxidrome sx’s
Anticholinergic sx's: 1. ↑BP and HR 2. Hyperthermia 3. Mydriasis 4. Delusions \+ 5. Seizure 6. Piloerection (hair standing up) 7. Hyperreflexia
Sympathaomimetics Toxidrome causes
Stimulants:
- Amphetamines
- Cocaine
- Pseudoephedrine
- Caffeine
- PCP
Medications that can cause Serotonin Syndrome
- SSRI
- Meperidine (Demerol) + Serotonin enhancing agent
- Lithium
- Monoamine oxidase inhibition= Rasagilline
What are the triad of sx’s of Serotonin Syndrome?
- Myoclonus
- MS changes
- Shivering
+ Agitation
Serotonin Syndrome treatment?
Supportive:
- Remove offending agent
- Reduce temperature
- Benzodiazepines
Opiate Toxidrome sx’s
Everything decreases!
- Pinpoint pupils
- Depressed respirations
Opiate Toxidrome treatment
- ABC’s
2. Naloxone= Narcan
What does a UDS NOT test for?
- Meperidine
- Hydrocodone
- Oxycodone
- Methadone*
- Tramadol
Antidote for Cholinergic toxidrome
- Atropine
2. Tupam
Sympathomimetics Toxidrome treatment
- Benzodiazepine
- Sodium Bicarb-Correct acidosis
- DO NOT give beta blockers
What is the toxic dose of Acetaminophen?
140 mg/kg
Toxic effects of acetaminophen toxicity
- Centrolobular necrosis (liver) = 40%
- Renal failure
3 Vomiting – MCly seen in children
Acetaminophen toxicity antidote
N-acetylcysteine (NAC)
Salicyclate Toxicity sx’s
- Vomting, abd. pain
- GI hemorrhage
- Hypotension
- Increased bleeding time
- Agitation, confusion
Salicyclate Toxicity treatment
- Gastric lavage if within 1 hour of ingestion
- Activated charcoal
- Sodium Bicarb
- Normal saline
MCC of seizure in patients with seizure disorder
- Subtherapeutic level of medication
- Infection or hyperthermia
- Alcohol use
- Head trauma
- Breakthrough seizure
What anticonvulsant can cause a false positive drug screen for amphetamines?
Phenytoin (Dilantin)
why can’t you give Phenytoin (Dilantin) IM?
Can cause:
- Thrombophlebitis
- Sterile abscesses
Phenytoin (Dilantin) toxicity sx’s
- Slurred speech
- Ataxia
- Nystagmus (horizontal)
- Visual changes
- Decreased LOC
Phenytoin (Dilantin) toxicity Tx
Supportive
MDAC
What is the MCC of coma from overdose?
Barbiturates
Barbiturates toxicity sx’s
- CNS depression
- Hypothermia
- Urinary retention
- Hypoglycemia
- Decreased motor activity
- Aspiration pneumonia
Barbiturates toxicity treatment
- Supportive
- Glucose
- Narcan
- Charcoal
Lithium toxicity treatment
Benzodiazepines
What is the MCly used and abused intoxication in the US?
Ethanol
List Isopropanol products
- Rubbing alcohol
- Jewelry cleaners
- Paint thinners
List Methanol products
- Wood varnishes
2. Windshield washing fluid
Metanol toxicity sx’s
- CNS depression
- Vision changes**
- Abdominal pain
- Hypotension=bad
Methanol treatment
- Supportive
- IV fluids
- Ethanol
- Fomepizole
List Ethylene Glycol product
Antifreeze
What may you see in 50% of cases of Ethylene Glycol toxicity?
Calcium oxalate crystalluria
Ethylene Glycol toxicity sx’s
- CNS depression
- Tachycardia, tachypnea
- Hypertension
- Flank pain, renal failure
- Hypocalcemia with tetany and QT prolongation
- Metabolic Acidosis
What is the MC dysrhythmia in calcium channel blockers?
- AV dissociation
- Bradycardia
- Increased PR interval
Calcium channel blocker treatment
- CaCl
- Insulin + Glucose
- Epinephrine
- Pacemaker
Beta Blocker treatment
- Glucagon
- Epinephrine
- Pacemaker
Digoxin treatment
- Vasopressors
- Atropine
- External pacing
TCA treatment
- Fluids, Bicarb, alpha agonists- Tx hypotension
- Benzo + Barbiturates-Tx seizure
- Charcoal
What other drug combo with TCA will cause death?
TCA + Procainamide
What is the MCC of unintentional poisoning death in the US?
Carbon Monoxide
Whipples Triad
- Hypoglycemia: glucose < 60
- Symptoms of hypoglycemia: Diaphoresis, nausea, AMS
- Resolution of symptoms with administration of glucose
Define Dystonic Reaction
- Idiosyncratic reaction
2. Sudden onset of abnormal or exaggerated posturing of head, neck, jaw
Medications that can cause dystonic reactions
- Phenothiazines-Phenergan, compazine
- Butyrophenones-Haldol
- Reglan
Risk Factors for development of dystonic reactions
- Male sex
- Young age
- Cocaine use
- Hypocalcemia
- Neurodegenerative disorders
Dystonic Reactions clinical presentation
- Spastic contractures of lips, tongue, face, throat
- Trismus, tongue protrusions
- Laryngeal and pharyngeal spasms
- Fear, anxiety
- Oculogyric crisis
Dystonic Reaction Tx
- Benadryl x 3-4 days
2. Benzotropine IV or IM
What is the MCC of pediatric mortality secondary to poisoning?
Iron poisoning
Stage 1 iron poisoning
GI injury: 6-12 hrs
- V/D, abdominal pain
- Hypotension, pallor
- Lethargy
- Metabolic acidosis
Stage 2 iron poisoning
6-24 hrs
Hypovolemia
Stage 3 iron poisoning
Multisystem organ failure
Lab findings in iron poisoning
- Increased WBC- Basophilic stippling
2. Increased glucose
Iron poisoning treatment
- Asx after 6 hrs= Discharge
- Whole Bowel irrigation (WBI)
- IV Deferoxamine (DFO)
What products contain hydrofluoric acid?
- Glass etching
- Metal cleaning
- Electronics manufacturing
- Rust remover
Clinical presentation of hydrofluoric acid toxidrome?
- Pain out proportion to exam
- Hypocalcemia
- Hypomagnesemia
hydrofluoric acid toxidrome EKG findings
- Arrhythmias
2. QT prolongation
hydrofluoric acid toxidrome CXR findings
Pulmonary Edema
hydrofluoric acid toxidrome treatment
- Double gloves for providers
- Copious water irrigation
- Calcium gluconate
What does cocaine show up on a UDS?
benzoylecgomine
Cocaine toxidrome treatment
Benzodiazepines
Phenycyclidine (PCP) effects
- Psychosis: Euphoria, agitation, hallucination, “super human strength”
- CV: Tachycardia, HTN
- Nystagmus
- MIOSIS-Pupul constricted
- Salivation
Phenycyclidine (PCP) TX
- IV fluids
2. Benzodiazepines
What is the only opiate associated with seizure?
Propoxyphene
Are the eye constricted or dilated with opiates?
Constricted=Miosis
Opiate Treatment
Narcan
MDMA treatment
Benzodiazepines
What does Amphetamines increase the the activity/release of?
- Dopamine
2. Norepinephrine
Increased dopamine activity results in what effects?
- Restlessness, hyperactivity
- Decreased sleep
- Repetitive behavior
Increased norepinephrine results in what effects?
- Mydriasis=Dilation
- Bronchodilation
- Vasoconstriction
- Hypertension
- Increased HR
Amphetamine treatment
- Benzodiazepine
- Haldol
- Cooling